Ladyfish
I DO use a bike to teach math. The other day I took each class out on the track, we used my bike computer to space 10 of them out .01 miles, and then they had stop-watches, while another student rode my bike at a constant velocity. It was our first pretty day in a long time, so they were pumped. We did several runs, starting at different places, and then turning around once and going back. Then we went in and the next day we graphed it. You can do a lot of stuff with graphs. Also converting the .01 miles to feet and meters. The kids loved it, we laughed and had a good time learning. I've used my bike several times for different classes (I teach physics too, man the stuff you can do there!) A few have even approached me about starting a cycling club...I love my job...